[bibletruth]

It makes NO difference that the word "morning star" has been used for thousands of years to refer to various rulers. The pertinent context in question is not here concerned with various rulers; it is concerned with Lucifer and Satan in Isaiah 14:12

Read it; does it sound like this verse concerns itself with various rulers?

How art thou fallen from heaven, O Lucifer, son of the morning! how art thou cut down to the ground, which didst weaken the nations!

If you wish to understand the Bible, you must read it in context when a word is used; not rely on history's usage as a primary source for meaning. The Bible is God's Word to us and His context is what supremely matters, not the worlds understanding, but God communication to us on what He means.

[Blood of Tyrants]

Yawn. You are making up something to be upset about.

[American Constitutionalist]

Another term Jesus used for the devil was that he ( Jesus ) saw the devil as lighting falling down from heaven, and add that to the morning star, it would sound like a comet, asteroid, or some kind of falling object from space.
He was cast down out of heaven to earth before man kind was created.
Barrack is translated Lighting.